<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        let [x, y] = [1, 2, 3];
        x // 1
        y // 2
        console.log(x);
        console.log(y);
        let [a, [b], d] = [1, [2, 3], 4];
        a // 1
        b // 2
        d
        console.log(a);
        console.log(b);
        console.log(d);
    </script>
</body>

</html>